AutoCodes – Jeep – B1991 Jeep

B1991 Jeep Code - Right Power Sliding Door Sensor Supply Circuit Low

Quick Answer

The Power Sliding Door Module monitors the Right Power Sliding Door Sensor Supply Circuit. Common causes include Faulty Right Power Sliding Door Sensor, Right Power Sliding Door Sensor harness is open or shorted, Right Power Sliding Door Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1991 Jeep indicates Right Power Sliding Door Sensor Supply Circuit Low.
Common causes: Common causes include Faulty Right Power Sliding Door Sensor, Right Power Sliding Door Sensor harness is open or shorted, Right Power Sliding Door Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 720

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code B1991 Jeep Description

The Power Sliding Door Module monitors the Right Power Sliding Door Sensor Supply Circuit. The Power Sliding Door Module sets the OBDII code when the Right Power Sliding Door Motor Sensor supply circuit voltage is below 1.0 volts.

OBDII Code B1991 Jeep - Right Power Sliding Door Sensor Supply Circuit Low - AutoCodes.com — B1991 Jeep Code - Right Power Sliding Door Sensor Supply Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1991 Jeep?

Faulty Right Power Sliding Door Sensor
Right Power Sliding Door Sensor harness is open or shorted
Right Power Sliding Door Sensor circuit poor electrical connection
Faulty Power Sliding Door Module

How to Fix the DTC B1991 Jeep?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1991 Jeep code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.